Makefile

#
# Makefile for the linux kernel.
#

extra-y	:= head.o init_task.o vmlinux.lds

obj-y := acpi.o entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o	\
	 irq_lsapic.o ivt.o machvec.o pal.o patch.o process.o perfmon.o ptrace.o sal.o		\
	 salinfo.o setup.o signal.o sys_ia64.o time.o traps.o unaligned.o \
	 unwind.o mca.o mca_asm.o topology.o

obj-$(CONFIG_IA64_BRL_EMU)	+= brl_emu.o
obj-$(CONFIG_IA64_GENERIC)	+= acpi-ext.o
obj-$(CONFIG_IA64_HP_ZX1)	+= acpi-ext.o
obj-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += acpi-ext.o

ifneq ($(CONFIG_ACPI_PROCESSOR),)
obj-y				+= acpi-processor.o
endif

obj-$(CONFIG_IA64_PALINFO)	+= palinfo.o
obj-$(CONFIG_IOSAPIC)		+= iosapic.o
obj-$(CONFIG_MODULES)		+= module.o
obj-$(CONFIG_SMP)		+= smp.o smpboot.o
obj-$(CONFIG_NUMA)		+= numa.o
obj-$(CONFIG_PERFMON)		+= perfmon_default_smpl.o
obj-$(CONFIG_IA64_CYCLONE)	+= cyclone.o
obj-$(CONFIG_CPU_FREQ)		+= cpufreq/
obj-$(CONFIG_IA64_MCA_RECOVERY)	+= mca_recovery.o
obj-$(CONFIG_KPROBES)		+= kprobes.o jprobes.o
obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o crash.o
obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
obj-$(CONFIG_IA64_UNCACHED_ALLOCATOR)	+= uncached.o
obj-$(CONFIG_AUDIT)		+= audit.o
obj-$(CONFIG_PCI_MSI)		+= msi_ia64.o
mca_recovery-y			+= mca_drv.o mca_drv_asm.o
obj-$(CONFIG_IA64_MC_ERR_INJECT)+= err_inject.o

obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirtentry.o

obj-$(CONFIG_IA64_ESI)		+= esi.o
ifneq ($(CONFIG_IA64_ESI),)
obj-y				+= esi_stub.o	# must be in kernel proper
endif

# The gate DSO image is built using a special linker script.
targets += gate.so gate-syms.o

extra-y += gate.so gate-syms.o gate.lds gate.o

# fp_emulate() expects f2-f5,f16-f31 to contain the user-level state.
CFLAGS_traps.o  += -mfixed-range=f2-f5,f16-f31

CPPFLAGS_gate.lds := -P -C -U$(ARCH)

quiet_cmd_gate = GATE $@
      cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@

GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1 \
		     $(call ld-option, -Wl$(comma)--hash-style=sysv)
$(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
	$(call if_changed,gate)

$(obj)/built-in.o: $(obj)/gate-syms.o
$(obj)/built-in.o: ld_flags += -R $(obj)/gate-syms.o

GATECFLAGS_gate-syms.o = -r
$(obj)/gate-syms.o: $(obj)/gate.lds $(obj)/gate.o FORCE
	$(call if_changed,gate)

# gate-data.o contains the gate DSO image as data in section .data.gate.
# We must build gate.so before we can assemble it.
# Note: kbuild does not track this dependency due to usage of .incbin
$(obj)/gate-data.o: $(obj)/gate.so

# Calculate NR_IRQ = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, ...) based on config
define sed-y
	"/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"
endef
quiet_cmd_nr_irqs = GEN     $@
define cmd_nr_irqs
	(set -e; \
	 echo "#ifndef __ASM_NR_IRQS_H__"; \
	 echo "#define __ASM_NR_IRQS_H__"; \
	 echo "/*"; \
	 echo " * DO NOT MODIFY."; \
	 echo " *"; \
	 echo " * This file was generated by Kbuild"; \
	 echo " *"; \
	 echo " */"; \
	 echo ""; \
	 sed -ne $(sed-y) $<; \
	 echo ""; \
	 echo "#endif" ) > $@
endef

# We use internal kbuild rules to avoid the "is up to date" message from make
arch/$(SRCARCH)/kernel/nr-irqs.s: $(srctree)/arch/$(SRCARCH)/kernel/nr-irqs.c \
				$(wildcard $(srctree)/include/asm-ia64/*/irq.h)
	$(Q)mkdir -p $(dir $@)
	$(call if_changed_dep,cc_s_c)

include/asm-ia64/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s
	$(Q)mkdir -p $(dir $@)
	$(call cmd,nr_irqs)

clean-files += $(objtree)/include/asm-ia64/nr-irqs.h

#
# native ivt.S and entry.S
#
ASM_PARAVIRT_OBJS = ivt.o entry.o
define paravirtualized_native
AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE
endef
$(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj))))